East Central Phoenix - 24th Street and Grand Canal | WQARF Site

East Central Phoenix - 24th Street and Grand Canal | Site Overview

Location: Phoenix, with the plume approximately bounded by East Pinchot Avenue to the north, East McDowell Road to the south, North 25th Street to the east and North Edgemere Street to the west.

If you own a private well, live in or near the site boundaries, and have not had your well tested, please contact ADEQ.

Contaminant of Concern (COC): Tetrachloroethene (PCE)

Action taken: The remedial investigation (RI) began in 2007. Sixteen groundwater monitoring wells and 17 soil vapor wells have been installed at the site. PCE has been detected in groundwater and soil vapor at concentrations as high as 2,900 micrograms per liter (μg/L) and 13,500,000 micrograms per cubic meter (μg/m³), respectively. A soil vapor extraction (SVE) system was designed in late 2015 and operated until August 2017. The SVE system removed approximately 76 pounds of contaminants. In December 2017, the highest PCE soil vapor concentration detected was 470 μg/m³. In April 2019, the highest PCE concentration detected in groundwater was 88 μg/L. The RI Report was completed in June 2019 and the Feasibility Study Report was completed in September 2019.

Status: The Proposed Remedial Action Plan was released on April 2, 2020.

Community Advisory Board (CAB): Established and meets on a regular basis. A list of CAB members and their contact information is available in the Community Involvement Plan (CIP) | View CIP>